JPS5944086B2 - Gap maintaining device between the "filtration" surfaces of the "filter" plate of a filter press - Google Patents

Description

TECHNICAL FIELD The present invention relates to a gap retaining device for maintaining a constant gap between filter surfaces of door plates of a filter press.

Prior Art Conventionally, in a filter press, a support part protruding in the thickness direction of the door plate is fixedly provided on the filtration surface of the door plate, and this support part and a support part provided on the filtration surface of the door plate adjacent to the door plate are connected. They are butted against each other with one cloth in between, so that a constant distance is maintained between the surface filtration surfaces.

However, with the structure described above, since the support part is fixed to the filtration surface, the part of the p cloth that comes into contact with the support part is severely damaged, and the part of the filtration surface where the support part is fixed is also particularly damaged. At the exit, made of elastic material of the press-type door plate,
There were serious problems.

Furthermore, since the supporting portion is integrally provided in the door panel, there is a problem in that the manufacturing cost increases.

Furthermore, in filter presses that use r cloths of various thicknesses by replacing them, the support part is fixed, so e
There was a problem in that it was not possible to follow changes in the thickness of the cloth, and the distance between the filter surfaces changed each time the cloth was replaced.

OBJECTS OF THE INVENTION An object of the present invention is to solve the various problems mentioned above, and to make it possible to separate the support part from the filtration surface of the door plate, thereby reducing damage to the r cloth and the filtration surface. It is an object of the present invention to provide a gap maintaining device between the retracted parts of a door plate of a filter press, which can reduce the manufacturing cost and can also follow changes in the thickness of the r cloth.

Structure and operation of the invention The structure and operation of the present invention are such that a pair of r-cloths is interposed between adjacent door panels, and a hanging member is provided between the door panel and the r-cloth adjacent to the door panel. A supporting member for maintaining a constant spacing between the filtering surfaces between the door panels is attached to the hanging member, so that the spacing between the filtering surfaces can be reliably maintained constant by the supporting member when the door panels are tightened. It is characterized by the following.

EXAMPLES The present invention will be specifically explained below based on illustrated examples.

In Figures 1, 2, and 3, 1 is a picture frame of a normal door panel 5;
3 is the filtration surface of the door plate 5 having uneven grooves, 3 is the stock solution hole in the door board 5, and 4 is the sap collection port of the door board 5, and the stock solution to be filtered is passed from the stock solution hole 3 to the space between the normal door boards 5 and 5. The P solution that is supplied into the P chamber 7 between the interposed P cloths 6 and 6 and separated from the residue is collected downward along the filtration surface 2, and is discharged from the solution recovery port 4 to the outside of the door plate 5. I try to do that.

As shown in FIG. 4, an auxiliary cloth 8 as a hanging member is hung from above on the first plate 5. 'Several pins 9 provided on the upper end surface of the frame 1 of the plate 5. ..., 9 is fixed to the Δj plate 5 so as to cover the front and rear surfaces 2, 2 of the P plate 5.

A protrusion 10 as a support member as shown in FIGS. 5, 6, and 7 is removably attached to this auxiliary cloth 8.

The protrusion 10 is formed integrally with a square plate-shaped mounting portion 10a and a truncated conical protrusion 10b, and is made of hard rubber in this example, but may also be made of plastic or A metal one with a finish that does not damage the fabric is also effective.

A protrusion 10 is disposed in, for example, one section of one mesh of the auxiliary cloth 8, and attachment holes 10c are provided at the four corners of the attachment portion 10a of the protrusion 10.

..., an attachment member 11 such as a string, tape, or wire is inserted into 10c and tied to the auxiliary r cloth 8 for attachment.

It is preferable that each corner of the protrusion 10 be rounded so as not to damage the cloth 6 or the filtering surface 2 of the R plate 5.

On the other hand, flat circular seats 2a, . The end faces of the auxiliary cloth 8 can be brought into contact with each other through the auxiliary cloth 8.

According to the above configuration, the gap maintaining device between the and the retracted portions of the j5 plate operates as follows.

First, the protrusion 10 is placed on the auxiliary r cloth 8 hung on the first plate 5.
, 10 are mounted in a well-balanced manner on the first side face 2 of the r plate 5, and the end face of the mounting portion 10a of each protrusion 10 is opposite to each seat 2a provided with the i-' side face recessed part. Let them do it.

In this state, when the first plates 5, 5 are tightened, as shown by the two first plates 5, 5 on the left side in FIG. The protrusions 10 abut on each seat 2a of the filtering surface 2 via the auxiliary r cloth 8, and the end surfaces of the protrusions 10b of each protrusion 10 are adjacent to the auxiliary r cloth 8 of the r plate 5.
A P cloth 6 is attached to the end surface of the protrusion 10b of each protrusion 10 attached to the
, 6, and maintain a constant distance W between the opposing two-side j recessed portions 2, 2 of the two-door panels 5, 5.

On the other hand, as shown by the quadratic r plates 5 and 5 on the right side in FIG.
When the lj plates 5, 5 are opened, the protrusions 10b of the protrusions 10 are released from abutting each other, and the mounting portions 10a of the protrusions 10 are attached to the respective seats of the j5 oversurface 2 of the plate 5. Leave 2a.

According to the above-mentioned device, the protrusions 10 and 10 are well-balanced with respect to each passing surface 2, centering around the stock solution hole 3, which has particularly poor pressure resistance. ...
, 10 are arranged, it is possible to uniformly support the first surface 2, and the withstand pressure near the stock solution hole 3 can be increased.

Furthermore, since the protrusions 10 are brought into contact with the seats 2a of the filtering surface 2 of the r-plate 5, the protrusions 10 can be positioned easily and reliably.

Further, since the auxiliary r cloth 8 is provided, the cloth 6 does not come into direct contact with the r plate 5, and damage to the cloth 6 can be reduced.

Note that the present invention is not limited to this embodiment (but can be implemented in various other embodiments).

For example, regarding the r plate, not only the normal 1 plate 5 but also the 8.9 plate.
As shown in the figure, a compressed type R plate 14 may be used.

In addition, in FIGS. 8 and 9, 15 is a compressed membrane forming a filtration surface,
16, 16 are P plate guide beams.

In addition, the present invention is not limited to one plate of an in-plane supply type for supplying the stock solution from within the filtration surface, but may also be one plate of a type for supplying the stock solution outside the filtration plane.

Furthermore, instead of bringing the protrusions 10 into contact with the seats 2a of the filter surface 2, the protrusions 10 are brought into contact with the first filter surface 2, thereby simplifying the structure of the filter surface. By further providing a recess in the seat 2a and fitting the protrusion 10 into the recess, the protrusion 10 may be positioned more reliably with respect to the filtering surface 2.

Moreover, instead of butting the opposing protrusions 10 and 10 against each other, one protrusion having a thickness that is approximately the same as the interval W between the filtration surfaces is attached to the auxiliary 1 cloth 8, and this protrusion and each filtration surface are connected to each other. A constant distance W may be maintained between the two r-side surfaces by abutting them against each other.

Furthermore, instead of integrally forming the protrusion 10, the protrusion 10b and the attachment part 10a are manufactured separately, and for example, as shown in FIG. 10, the attachment part is made of semi-hard rubber or plastic. The protrusion 12 is in the recess 12c of 12a.
b may be fitted to form the protrusion 12 (
Or, conversely, the projection may be provided with a recess, and the projection provided on the attachment portion may be fitted into the recess to form the protrusion.

In this way, the overload that occurs when the protrusions butt each other can be absorbed by the elastic deformation of the elastic attachment part, and the P
No overload is applied to the cloth 6 or the door panel 5.

Further, the shape of the protrusions 10 is not limited to a circular cross section, but may have an arbitrary cross-sectional shape such as an ellipse or a square, and the number of protrusions 10 may also be arbitrary.

Furthermore, instead of attaching the protrusion 10 to the r-right side of the auxiliary P cloth 8, the protrusion 10 may be attached to the door plate side of the auxiliary R cloth 8, as shown in FIG.

Furthermore, as attachment members for attaching the protrusions 10 to the auxiliary P cloth 8, in addition to strings, any means such as bolts, screws, pins, etc. that can attach the protrusions 10 to the auxiliary P cloth 8 may be used. (
, as shown in FIG. 12, a protrusion 1 having a base portion 13a made of rubber or plastic, for example, is placed between the auxiliary cloth 8.
3b and a mounting base 13e made of rubber or plastic, for example, are made to face each other, and the base portion 13a of the protrusion 13b and the mounting base 1 are bonded by heat fusion, adhesive, or other appropriate means.
The projections 13 may be added to the auxiliary r cloth 8 while the auxiliary 1 cloth 8 is held between the auxiliary cloth 8 and the auxiliary r cloth 8.

Further, instead of the auxiliary cloth 80, a string-like member such as tape or wire, or a net may be used as the hanging member.

In addition to hanging the protrusions 10 from the door panel 5, it is also possible to suspend the protrusions 10 from the saw cloth 6 via a hanging member, or
The protrusion 10 may be suspended via a hanging member using a hanging device separate from the cloth 6.

Effects of the Invention The present invention includes a hanging member interposed between a door panel and a saw cloth adjacent to the door panel, and a supporting member that maintains a constant f-recess interval between the door panels on the hanging member. Since the supporting member is attached to the filter surface of the jj plate, damage to the cloth and the recessed part can be reduced, and the manufacturing cost can be reduced. Even when the thickness of the cloth changes, by replacing the support member, it is possible to maintain a constant one-plane interval and to reliably prevent damage to the P cloth.

Furthermore, by replacing and attaching and detaching the supporting members in various ways as described above, it is possible to change the supporting force against the filtration surface, and to change the superposition of the supporting members to change the load applied to the hanging member.

Moreover, when the support member is not needed, it can be easily removed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the door plate, FIG. 2 is a cross-sectional view taken along the line X-X in FIG. 1, and FIG. 3 is a cross-sectional view taken along the Y-Y line in FIG. 1. 4 is a vertical cross-sectional side view of the main parts of the door panel, etc., FIG. 5 is an enlarged front view showing the protrusion attached to the auxiliary cloth, FIG. 6 is a side view of FIG. 5, and FIG. The figure is a vertical cross-sectional side view of the abutment, FIG. 8 is a partially cutaway front view showing the relationship between the press-type door panel and the auxiliary R cloth and P cloth, etc., showing another embodiment of the one shown in FIG. 1. FIG. FIG. 10 is a vertical cross-sectional side view of main parts showing another embodiment of FIG. 4, FIG. 11 is a vertical cross-sectional side view of another embodiment of FIG. 7, and FIG. 11 is a side view of another embodiment of FIG. FIG. 12 is an enlarged vertical cross-sectional side view of the main part, and FIG. 12 is a vertical cross-sectional side view showing still another embodiment. 2...Filtering surface, 5...Door plate, 6...
... P cloth, 8 ... Auxiliary P cloth, 10, 12, 1
3...Tsuko.

Claims (1)

[Scope of Claims] 1 A pair of cloth is interposed between adjacent door panels, a hanging member is interposed between the door panel and a P cloth adjacent to the door panel, and the hanging member is interposed between the door panel and the P cloth adjacent to the door panel. 1. A device for maintaining a gap between the filter surfaces of one plate of a filter press, characterized in that a support member is attached to the lower member to maintain a constant gap between the filter surfaces between the door plates.